science project due tomorrow

[Birdsnest]

oh, no, I am not sure what this project will be about, if anyone has any ideas about subjects that are easy do it yourself home science projects that can be put together in one night, please tell me.

[jyakulis]

You can do a density/buoancy one. Like put 3 layers of liquid oil, water, and honey. And then drop things with different densities in and see which layer they fall to. It's kinda lame but if it's due tommrow......or you could just go for the usual volcano lol. I never figured out how that was science. Or just drop things and show that gravity is constant (little g). And then a piece of paper and explain that air resistance on the paper works against gravity. Again drop a crumpled piece of paper and something else to show that gravity is constant. Then you could actual go into G (big G not little g) calculations using the mass of the earth to show it. Ehh they are simple and on a 5th grade level but those are the only ones I could think of off the top of my head.

[Birdsnest]

The oil and honey sounds half decent. The amazon thing stands if I can get like a hypothesis question and all that. Thanks!

[Garyincinci]

My 12th grade science project I demostrated vacuums and the centerpeice of my display was a gravity bong. None of the teachers either noticed or they did and didn't say anything.

[jyakulis]

Hehe well the amazon thing is unecessary just wanted to help. I found a good site to get you started.

http://hyperphysics.phy-astr.gsu.edu/hbase/class/phscilab/dens.html

The basics is that the oil should form on top of the water the water on top of the honey. The whole dropping objects thing, you'd have to know their density and prove that there is a balance of forces. I dunno the possiblities are endless. Shake up the vial show they still will form layers. It's all testing archimedes principle. So maybe that could be your question. You could title it: Archimedes Raving Lunatic or Brilliant?

[jyakulis]

Or you could calculate volumes of things that would otherwise be unmeasurable based on displacement of water.

[Birdsnest]

Thank you so much, what we ended up doing, is getting a plastic cylindrical jar at grocery store that has a lid that twists on, filling it with 8 cups water, 2 cups oil, 1 cup honey, and dropping a grape into it with the question "Will a grape float or sink?". (Actually this was found on About.com). It sunk thru the water and oil, but rested on top of the honey.

Then we filled another bottle with warm salt water and dropped a grape in it. At first nothing happened and I read it again, it said to increase the salt, and make sure its disolved. Then, the grape actually began to rise to the top. So, we've got the experiment, now we just have to come up with the rest, but I have till tomorrow morning and will be working on it tonight.

Anyway, the idea of the honey and oil helped this whole thing along, thank you very much.

I know its got to do with how dense something is, but at least the subject is figured out!

And Gary, that is pretty wild with the bong!

[Garyincinci]

Archimedes' Principle:


A body will float in a fluid if the weight of the object is equal to the weight of the fluid displaced by the object (called the buoyant force) Corollary: If an object is unable to displace a weight of fluid equal to its own weight...THE OBJECT WILL SINK

Here's a good link that I had in my favorites: http://resources.yesican.yorku.ca/lpdd/g08/lp/unit1_archimedes.html

[Birdsnest]

Thank you a bunch.